5171644811 has 4 divisors (see below), whose sum is σ = 5202612912. Its totient is φ = 5140676712.

The previous prime is 5171644801. The next prime is 5171644837. The reversal of 5171644811 is 1184461715.

5171644811 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1184461715 = 5 ⋅236892343.

It is a cyclic number.

It is not a de Polignac number, because 5171644811 - 2⁶ = 5171644747 is a prime.

It is a super-2 number, since 2×5171644811² = 53491820102286451442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5171644801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15483800 + ... + 15484133.

It is an arithmetic number, because the mean of its divisors is an integer number (1300653228).

Almost surely, 2^5171644811 is an apocalyptic number.

5171644811 is a deficient number, since it is larger than the sum of its proper divisors (30968101).

5171644811 is a wasteful number, since it uses less digits than its factorization.

5171644811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30968100.

The product of its digits is 26880, while the sum is 38.

The square root of 5171644811 is about 71914.1488929682. The cubic root of 5171644811 is about 1729.3234472389.

The spelling of 5171644811 in words is "five billion, one hundred seventy-one million, six hundred forty-four thousand, eight hundred eleven".